Digital piggy bank



FIG. 1 is a front, top, right side perspective view of a digital piggy bank showing our new design;

FIG. 2 is a rear, bottom, left side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof.

The broken lines shown in the drawings illustrate portions of the digital piggy bank that form no part of the claimed design. 

CLAIM The ornamental design for a digital piggy bank, as shown and described. 